I have noticed I am unable to connect to a few websites

Unable to connect to certain websites. I can access almost everything except for a handful of sites. So far I've identified 3 sites. umkc.edu, nfm.com, and 7thheavenonline.com. I really need to access the umkc site for school. If I use a free proxy service I can pull the sites up, but with the amount I pay each month to Time Warner I shouldn't have to do this. Any suggestions on what the problem is? How can I fix this?

Thanks for the advice! It turned out to be my wireless router. Some type of DNS error was occurring. The router wouldn't reset to factory settings, so I switched it out with an older router. Great suggestion. I actually had attempted that.

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